At sonystyle.ca you can get a new
PRS-300 for $199.99.
Only a 5" diagonal screen and no SD card in comparison to PRS-505.
If you use coupon code CJFMPLC15 you'll get a further reduction of $15 to get a total before tax price of $184.99.
Best deal I can find for PRS-300 but there have been sales at Best Buy and London Drugs lately for the Sony Readers.